Company now expects to complete enrollment of 150 patients in Q2 2026, with a Phase 3 data readout in mid-2027; Rolling NDA submission planned to initiate in first half 2027
Stoke Therapeutics, Inc. is a biotechnology company dedicated to restoring protein expression by harnessing the body’s potential with RNA medicine and has a lead investigational medicine, zorevunersen, in development with Biogen as a first-in-class potential disease-modifying treatment for Dravet syndrome. The Company announced accelerated timelines for the completion of enrollment and a Phase 3 data readout from the EMPEROR study. Completion of enrollment of 150 patients is now expected in the second quarter of 2026. This enrollment progress puts the Phase 3 EMPEROR study on track for a data readout in mid-2027 that is anticipated to support the submission of a New Drug Application (NDA) to the U.S. Food and Drug Administration (FDA). The Company plans to initiate a rolling NDA submission in the first half of 2027.
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In addition, as part of zorevunersen’s Breakthrough Therapy Designation, a multidisciplinary meeting was held with the FDA to discuss the ongoing clinical development of zorevunersen, including the exploration of potential expedited regulatory pathways. No immediate changes to the zorevunersen development program were agreed to at the meeting. The FDA has requested additional information, and discussions between the Company and the Agency are ongoing regarding potential opportunities to expeditethe development, registration and delivery of zorevunersen to patients.
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“The rate of enrollment in the Phase 3 EMPEROR study is highly encouraging and supports the significant need for a disease-modifying treatment for Dravet syndrome. The accelerated timing for completion of enrollment of 150 patients, in addition to Breakthrough Therapy Designation, positions us to initiate a rolling NDA submission in the first half of 2027 resulting in the potential to deliver zorevunersen to patients sooner than originally expected,” said Ian F. Smith, Chief Executive Officer and Director of Stoke Therapeutics. “Our recent multidisciplinary meeting was productive and we appreciate the FDA’s interest in deepening their understanding of Dravet syndrome and its impacts on patients and their families while also taking time to review and discuss our four years of clinical data. Subsequently, we have responded to the Agency’s request for additional information and we look forward to continuing to engage with them as part of our commitment to explore every opportunity to deliver zorevunersen to patients as quickly as possible.”
As of January 9, 2026, nearly 330 patients globally had been identified by investigators as potential study candidates. Of these, approximately 60 patients are currently in the formal 8-week screening period that immediately precedes randomization and an additional approximately 60 patients have advanced to randomization and dosing.
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Source- businesswire
